How did the yellow code turn green? How many days will it take?
You only need to do two nucleic acid tests in three days, and the results of nucleic acid tests are all negative, so the yellow code will naturally return to the green code.
The health code turned yellow for no reason. What happened?
The official said that the green code suddenly turned into a yellow code, probably because of "time and space accompanying". Spatio-temporal accompaniment means that within 14 days, * * * stays in the same spatio-temporal grid as the diagnosed patient (usually 800 meters as the detection range) for more than 10 minute.
There is also a popular saying that your 14-day action trajectory has crossed with the diagnosed patient. Whether it is a physical brush or a drift in the communication signal, it may be considered as a problem of time and space. Of course, it is recoverable to change the green code into the yellow code, so don't worry.
That's how the yellow code turns green. It will take several days to introduce. I hope it will help everyone.